Hennessey-Tuned Corvette ZR700 Makes Incredible 705 HP, 717 Lb-Ft Of Torque

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What's that? You think the 2009 Corvette ZR1's 638 HP could put your grandmother to sleep? Fret not, Hennessey and his Houston shop have just the thing to make your loins tingle once again.


We're giddy at the thought of Hennessey Motorsports LS9 swapped 705hp HPE700 Camaro that we showed you earlier in the month, but the $109,000 price tag makes us a little weak in the knees because it's. Still. Just. A. Camaro. Now, give us that performance package in the Corvette and we'll be ever grateful. Thankfully John Hennessey knows what we like as evidenced by the clips of the HPE ZR700 Corvette running on a rolling-chassis dyno and launching down the 1320.

Hennessey ZR700 Quarter Mile: 11.03 @ 136 mph

The HPE ZR700 package will exchange your hard earned dollars for a 67 horsepower increase over your stock Corvette ZR1. That's a total of 705 horsepower and an extra healthy dose of 717 lb-ft of torque, enough to rocket this blue collar supercar to an estimated 212mph and as evidenced above, a 11.03 quarter mile time at 136mph. It doesn't matter what anyone says- that's fast. Helping to reach these power numbers are a supercharger pulley and blower snout upgrade, increasing boost from 11 to 14 psi; an intercooler upgrade; K&N air filter system; stainless steel 1 7/8 inch headers; high flow catalytic converters with mid pipes; and a reprogrammed engine management computer.

While a price has yet to be set, we spoke with Mr. Hennessey himself last month and he told us that you could buy the whole package from HPE or you can purchase the parts individually for a lower price. That doesn't neccessarily clue us into a price, but if you know Hennessey Motorports, it won't come cheap. Also in the pipeline is the ZR750, a 755 horsepower version with an earth rotating 730lb-ft or torque, though it'll come at a later date.


If you're reading this John, we'll put our Moms up for sale to be first in line to drive either of these beasts. Hell, we'll sell our entire families. And no, we're not kidding about that.

For comparisons sake, the baseline dyno run with a stock 2009 Corvette ZR1:

Here are the specs:

ZR700 - 705 HP Engine Upgrade

# Power: 705 HP @ 6,400 rpm
# 717 lb-ft Torque @ 3,800 rpm

# 0-60 mph: 3.1 sec.
# 0-150 mph: 13.9 sec. (stock = 17.1 sec.)
# 1/4 mile: 11.0 @ 136 mph (tested on factory Michelin tires)
# Top Speed: 212 mph (estimated)

# Supercharger Pulley & Blower Snout Upgrade (increases boost from 11 to 14 psi)
# Intercooler System Upgrade
# K&N Air Filter
# Re-program Engine Management Computer
# Stainless Steel 1 7/8 inch Headers
# High Flow Catalytic Converters with Mid Pipes
# Hennessey & ZR700 Exterior Emblems (Optional)
# Hennessey ZR700 Premium Floor Mats
# Professional Installation at HPE
# Dyno Testing & Tuning
# Available Now on an Installed Basis at HPE. Includes Limited Warranty
# Mail Order Kit Available by May, 2009

ZR750 - 750 HP Engine Upgrade

# Power: 755 HP @ 6,600 rpm
# 730 lb-ft Torque @ 4,000 rpm

# Supercharger Pulley (increases boost from 11 to 14 psi)
# Blower Gasket
# K&N Air Filter
# Re-program Engine Management Computer
# 6600 rpm Rev Limiter (200 rpm over stock)
# Stainless Steel Headers
# High Flow Catalytic Converters with Mid Pipes
# High Flow Cylinder Heads
# Camshaft Upgrade
# Hennessey & ZR750 Exterior Emblems (Optional)
# Hennessey ZR750 Premium Floor Mats
# Available as a Mail Order Kit as well as Installed at HPE


Rear Wheel Horsepower: Stock ZR1 vs Z700 Upgrade.


Rear Wheel Torque: Stock ZR1 vs Z700 Upgrade.



[via Hennessey Motorsports]